Anti-aliased clipping by band-limited modulation with step...

Details Anti-aliased clipping by band-limited modulation with step... Anti-aliased clipping by band-limited modulation with step...

2005-08-30

2005-08-30

Mei, Xu (Department: 2644)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Digital audio data processing system

C381S106000, C333S014000

Reexamination Certificate

active

06937912

ABSTRACT:
A method for computing the “clippings” of an audio signal in the digital domain to prevent aliasing is disclosed. An offset signal is found by subtracting a threshold from samples of the audio signal. These are multiplied by a pulse after the pulse is lined up in time with the crossing of the audio signal at the threshold. The pulse is the sum of two step functions, both of which are bandwidth-limited.

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